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  • Troubleshooting Tow Ready Tail Light Isolating Diode System for 2018 Jeep JK Wrangler Unlimited
  • It sounds like you have a bad/failed connection on your installation of the Tow Ready Tail Light Isolating Diode System with 4-Pole Connector, # TR118821. I suggest that you first check the ground connection and ensure that it is made to a clean bare metal surface that is free of corrosion and verify all connector pins are properly seated and not damaged. Then work back from one end of circuit to the other performing a continuity check and looking for any damaged wires.
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  • Tekonsha Prodigy RF Wireless Trailer Brake Controller Will Not Pair
  • The "n.c" error on the Tekonsha Prodigy RF Wireless Trailer Brake Controller part 90250 can be caused by one or more of the following: 1. Power Module not connected to tow vehicle. 2. Trailer connector disconnected or corroded. 3. Key off or Loss of Battery Power from tow vehicle. 4. Trailer connected with open circuit on the brake line. 5. Loss of trailer brake magnet ground. 6. Loss of RF Communications, signal or interference. 7. Unit not paired or improperly paired. If you have ensured...
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  • Is 3.6V on 2020 Jeep Wrangler Unlimited Trailer Plug Abnormal
  • If it's just a 4-Way Flat connector like the T-On # 118786 then I would be surprised to see that much power being pulled to the back of your 2020 Jeep Wrangler Unlimited, but if you have a 7-Way like what we find with the Wiring Kit # ETBC7 then 3.6V on the 12V power pin isn't out of the ordinary and you'll be fine. Attached are photos showing the functions per pin on both a 4-Way and a 7-Way connector for you to reference.
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  • After Dealer Replaced Trailer Hitch on 2006 Jeep Liberty it Started Blowing Fuses
  • To determine if it is the wiring harness on your 2006 Jeep Liberty that is causing the problem you can perform some tests. Basically you would use a circuit tester such as # PTW2993 and test the wires going into the wiring harness converter box and the wiring coming out of the box. It helps to have someone in the vehicle to operate the lighting functions while you test the wires. If the converter box is not receiving the correct signals going into it from the vehicle then there is some...
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  • Turn Signals Intermittently Working While Running Lights And Tail Lights Work
  • If the signals are trying to draw more power when in function, but are only working intermittently, I would first check the ground contact point. This will be the white wire from the converter box. Make sure you have a clean, maybe even bare metal surface to give you a solid ground connection. You can use a little sand paper to remove any paint or coating to this surface that might hinder a quality connection when grounding. Also look for any possible kinks or bends in the power from...
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  • No Power on Right Turn/Brake Light Pin After Installing Curt Wiring Harness on 1991 Jeep Cherokee
  • The first thing to do is use your circuit tester to test the green wire going into the black converter box from the vehicle. If it shows power with the right blinker on then test the green wire on the output side of the black converter box. If there is no power on the output side but there is power on the input side that indicates a problem with the converter and it will need to be replaced. If the input side does not show power when it should then there is an issue with the vehicle wiring...
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  • Troubleshooting 3rd Brake Light Malfunction With A Hopkins Custom Tail Light Wiring Kit On A Jeep
  • Since you're only having issues with your brake light after installing the kit it could be a lose connection of one of the pins so I would first start by checking the pins on on your Hopkins Custom Tail Light Wiring Kit for Towed Vehicles Item # HM56200 for any defects and using some Dielectric Grease # 11755 to form a strong connection. If this does not solve your problem then the converter box isn't correctly sending signals and will need to be replaced. Since you just purchased this...
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  • Troubleshooting Tekonsha Primus IQ Brake Controller Always Flashing
  • There are a couple of reasons why your Primus IQ trailer brake controller # TK90160 could be flashing. It could be a bad ground connection, an overload or the angle of the controller not accurate for use. The angle is an issue because it utilizes an internal sensor to determine deceleration for the proportional braking of your trailer. I've attached a photo of the troubleshooting in the manual as well as the instructions to assist. If this doesn't help solve your flashing, then give...
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  • Troubleshooting Tail Light Flashing with Flexo-Coil Kit Installed on 2018 Jeep JL Wrangler Unlimited
  • Start off by checking the 6-Way connector at the front of your 2018 Jeep JL Wrangler Unlimited. Be sure that none of the wires are touching any wires next to it which would allow power to jump from one circuit to the other. If that looks good then the next step is to troubleshoot the diodes that come with the Flexo-Coil Wiring Kit # RM-15267. Since the problem is only happening to one side simply remove the diode on the circuit that is messing up and swap it with one on the other side...
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  • Should There Be Any Gap Between The Roadmaster D-Ring Adapter And The D-Ring
  • I've dealt with this issue in the past and Roadmaster stated that there shouldn't be more than 1/8" gap, otherwise you'll get two much play and can start to get friction. Since you're right at 1/8" with the # RM-035-1 you'll most likely be good to go but it wouldn't hurt to reach out to Roadmaster to see if they approve of this for warranty reasons. In the attached video below you can see the same amount of gap at the 1:45 minute mark.
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  • Troubleshooting Overheating While Towing Boat with 2015 Grand Cherokee V6
  • Your 2015 Jeep Grand Cherokee V6, the towing capacity is greater than that, however you still need to use caution. Your owners manual suggests not using ACC at all during towing. It also states that you should follow the gauges which may be more sensitive to heat when towing to remain safe. It could be that your thermostat is misreading, but it is very likely you need to add a cooling system which is normally included with a towing package. Adding coolers will only help your vehicle...
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  • Troubleshooting T-Connector Vehicle Wiring Harness, # C55050 Not Working on a 2008 Jeep Compass
  • This may seem like an obvious suggestion but you will need to make sure the T-Connector Vehicle Wiring Harness, # C55050, is directly connected to the positive battery terminal on the vehicle via the included fuse and holder. Any other 12 volt source is not sufficient. Make sure the fuse is intact and fully inserted into the holder. If you have done this and followed all of the other instructions and there is still no power or signals coming through then there could be a problem inside...
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  • Troubleshooting Bolts Too Big When Installing Trailer Hitch on 1998 Jeep Cherokee
  • It is actually pretty common for the bolts to seem like they are too big to fit when installing a trailer hitch such as the Curt Trailer Hitch Receiver # 13084 that fits your 1998 Jeep Cherokee. The issue is especially prevalent in more well-traveled vehicles because dirt and corrosion will have taken their toll, making the bolts seem too big for installation. The best option is to use lubricant and then very thoroughly scrub the weld nuts with Nylon Tube Brush # 814092. This can take...
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  • Trailer Wiring Harness has No Power on a 1995 Jeep Grand Cherokee
  • The black and yellow wires together in their own connector are for power (black wire) and left turn signal (yellow wire). Use a circuit tester such as # PTW2993 to determine if the black wire has power on it when plugged into the factory plug. the vehicle may or may not have to be turned on. If there is no power coming from the vehicle, then it is likely a blown fuse or relay in the power distribution box. If there is power on that black wire but no power on the 4-Way wiring coming out...
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  • Troubleshooting Brake Controller Error Codes On 2012 Jeep Wrangler Unlimited
  • It sounds like you have a short in the blue brake wire somewhere between the brake controller and the 7-way connector at the rear of your Jeep, especially since you said the error codes show up with no trailer connected. You will want to cut the blue wire about 4 or 5 inches behind the brake controller and see if the flashing SH code stops. If it does, then there is a problem with that wire, and you will need to check it all the way back to the 7-way. If the code stops flashing on the...
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  • Troubleshooting T-One Harness On 2010 Jeep Grand Cherokee With Intermittent Blinker
  • Many times corrosion can cause problems like you are describing on your 2010 Jeep Grand Cherokee. A loose ground can cause intermittent problems as well. You want to make sure the ground wire is attached to a clean, bare metal surface. If you find green and/or white corrosion inside the connector, that will probably be what is causing the problem. You will need to clean this corrosion out and make sure the connections are secure. If you have it cleaned out and find it is working, I recommend...
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  • 4-Way Wiring Issue on 1997 Jeep Wrangler With LED Taillights
  • I believe we are running into one of 2 issues. I believe the issue may be with the LED taillights that you installed 6 months ago. Depending on how they are controlled that might be where the issue is coming from. It could have its own circuitry that is causing the power to crossover and that is why you are seeing both turn signals going when they shouldn't be. I recommend reaching out to the Taillight Manufacturer to see if they are aware of this being an issue. The second could be the...
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  • LED on Blue Ox Patriot Braking System Blinks After Unit Is Switched Off
  • What you describe is completely normal. The Blue Ox # BLU37TR Patriot features an internal capacitor that stores power in the event that battery connection would be lost. The power stored in the capacitor is what is causing the LED to blink and will deplete within 20-30 minutes.
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  • How to Reduce Vibration on Towing Mirrors for a 2012 Jeep Wrangler Unlimited
  • I called my contact at K-Source about the K-Source Universal Dual Lens Towing Mirrors part # KS3990 and they informed me that they have not really heard of many issues with excessive vibration. However, if you are experiencing such then you might want to try and tighten the strap a bit more to see if that fixes your issue. Unfortunately, if the side mirrors on your vehicle are also experiencing vibration then the towing mirrors would be more or less an amplified version of that as they...
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  • 2002 Jeep Grand Cherokee Laredo Replacement 7-Way Recommendation
  • Yes, the replacement 7-Way part # 42145 is a confirmed fit for your 2002 Jeep Grand Cherokee Laredo. If you are in need of a replacement 7-way this is a confirmed fit and connects easily to the factory trailer wiring port on the vehicle.
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